According to the Wall Street Journal, the U.S. threatened to cut off missile-interceptor supplies after Saudi Arabia refused to open its military bases to the 'Free Action' program.

Hang Seng Index closed down 0.63% at 22,881.02 after an intraday drop of more than 300 points; the Hang Seng Tech Index outperformed, rising 1.80% to 4,472.23. Hong Kong turnover was HKD 308.05 bln, down from HKD 315.38 bln in the prior session. Optical-communications and semiconductor sectors led gains; robotics strengthened in the afternoon while innovative drugs, consumer, precious metals and oil & gas underperformed. Notable movers: new listing True Health Medical (02697.HK) +216.96%, Xunlong Technology (06715.HK) +50.99%; Dida Chuxing (02559.HK) +88.19%; Haiguang Xinzheng (01191.HK) +16.24%; Yangtze Optical Fibre & Cable (06869.HK) +6.68%; SMIC (00981.HK) +5.42%; UBTECH (09880.HK) +7.48%; Want Want China (00151.HK) -12.85% after results.

U.S. job openings were little changed in May at 7.59 million, marginally above April's revised level, the Bureau of Labor Statistics said Tuesday; economists' median forecast was 7.30 million. Wage growth has picked up recently. Openings in professional and business services were essentially flat in May after accounting for most of April's employment gains. Construction and leisure & hospitality showed job gains, while openings in financial activities continued to decline and have been the largest drag on employment growth this year. The report reinforces other data signalling labour-market momentum. Price rises during the Iran conflict have weighed on consumer confidence and tempered wage growth, but have had limited impact on labour demand and consumer spending has remained resilient.